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List of TCP and UDP Port Numbers 1 List of TCP and UDP Port Numbers

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List of TCP and UDP Port Numbers 1 List of TCP and UDP Port Numbers List of TCP and UDP port numbers 1 List of TCP and UDP port numbers In computer networking, the protocols of the Transport Layer of the Internet Protocol Suite, most notably the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP), but also other protocols, use a numerical identifier for the data structures of the endpoints for host-to-host communications. Such an endpoint is known as a port and the identifier is the port number. The Internet Assigned Numbers Authority (IANA) is responsible for maintaining the official assignments of port numbers for specific uses.[1] Table legend Color coding of table entries Official Port/application combination is registered with IANA Unofficial Port/application combination is not registered with IANA Conflict Port is in use for multiple applications Well-known ports: 0–1023 According to IANA "The Well Known Ports are assigned by the IANA and on most systems can only be used by system (or root) processes or by programs executed by privileged users. Ports are used in the TCP [RFC793] to name the ends of logical connections which carry long term conversations. For the purpose of providing services to unknown callers, a service contact port is defined. This list specifies the port used by the server process as its contact port. The contact port is sometimes called the well-known port."[1] Port TCP UDP Description Status 0 UDP Reserved Official 0 TCP UDP When running a server on port 0, the system will run it on a random port from 1-65535 or 1024-65535 Official depending on the privileges of the user. 1 TCP UDP TCP Port Service Multiplexer Official 2 TCP UDP Management Utility Official 3 TCP UDP Compression Process Official 4 TCP UDP Unassigned Official 5 TCP UDP Remote Job Entry Official 6 TCP UDP Unassigned Official 7 TCP UDP Echo Official 8 TCP UDP Unassigned Official 9 TCP UDP Discard Official 10 TCP UDP Unassigned Official 11 TCP UDP Active Users Official 12 TCP UDP Unassigned Official 13 TCP UDP DAYTIME – (RFC 867) Official 14 TCP UDP Unassigned Official 16 TCP UDP Unassigned Official 17 TCP UDP Quote of the Day Official List of TCP and UDP port numbers 2 18 TCP UDP Message Send Protocol Official 19 TCP UDP Character Generator Official 20 TCP FTP – data transfer Official 21 TCP FTP – control (command) Official 22 TCP UDP Secure Shell (SSH)—used for secure logins, file transfers (scp, sftp) and port forwarding Official 23 TCP Telnet protocol—unencrypted text communications Official USA only 24 TCP UDP Priv-mail : any private mail system. Official 25 TCP Simple Mail Transfer Protocol (SMTP)—used for e-mail routing between mail servers Official 34 TCP UDP Remote File (RF)—used to transfer files between machines Unofficial 35 TCP UDP Any private printer server protocol Official 37 TCP UDP TIME protocol Official [2] 39 TCP UDP Resource Location Protocol (RLP)—used for determining the location of higher level services from hosts on Official a network 41 TCP UDP Graphics Official 42 TCP UDP nameserver, ARPA Host Name Server Protocol Official 42 TCP UDP WINS Unofficial 43 TCP WHOIS protocol Official 47 TCP UDP NI FTP Official 49 TCP UDP TACACS Login Host protocol Official 50 TCP UDP Remote Mail Checking Protocol Official 51 TCP UDP IMP Logical Address Maintenance Official 52 TCP UDP XNS (Xerox Network Systems) Time Protocol Official 53 TCP UDP Domain Name System (DNS) Official 54 TCP UDP XNS (Xerox Network Systems) Clearinghouse Official 55 TCP UDP ISI Graphics Language (ISI-GL) Unofficial 56 TCP UDP XNS (Xerox Network Systems) Authentication Official [3] 56 TCP UDP Route Access Protocol (RAP) Unofficial 57 TCP Mail Transfer Protocol (MTP) Unofficial 58 TCP UDP XNS (Xerox Network Systems) Mail Official 67 UDP Bootstrap Protocol (BOOTP) Server; also used by Dynamic Host Configuration Protocol (DHCP) Official 68 UDP Bootstrap Protocol (BOOTP) Client; also used by Dynamic Host Configuration Protocol (DHCP) Official 69 UDP Trivial File Transfer Protocol (TFTP) Official 70 TCP Gopher protocol Official 79 TCP Finger protocol Official 80 TCP UDP Hypertext Transfer Protocol (HTTP) Official 81 TCP Torpark—Onion routing Unofficial 82 UDP Torpark—Control Unofficial 83 TCP MIT ML Device Official 88 TCP UDP Kerberos—authentication system Official List of TCP and UDP port numbers 3 90 TCP UDP dnsix (DoD Network Security for Information Exchange) Securit Attribute Token Map Official 90 TCP UDP Pointcast Unofficial 99 TCP WIP Message Protocol Unofficial 101 TCP NIC host name Official [4] 102 TCP ISO-TSAP (Transport Service Access Point) Class 0 protocol Official 104 TCP UDP ACR/NEMA Digital Imaging and Communications in Medicine Official 105 TCP UDP CCSO Nameserver Protocol (Qi/Ph) Official [5] 107 TCP Remote TELNET Service protocol Official [6] 108 TCP UDP SNA Gateway Access Server Official 109 TCP Post Office Protocol 2 (POP2) Official 110 TCP Post Office Protocol 3 (POP3) Official 111 TCP UDP ONC RPC (SunRPC) Official 113 TCP ident—user identification system, used by IRC servers to identify users Official 113 TCP UDP Authentication Service (auth) Official 115 TCP Simple File Transfer Protocol (SFTP) Official 117 TCP UUCP Path Service Official 118 TCP UDP SQL (Structured Query Language) Services Official 119 TCP Network News Transfer Protocol (NNTP)—used for retrieving newsgroup messages Official 123 UDP Network Time Protocol (NTP)—used for time synchronization Official 135 TCP UDP DCE endpoint resolution Official [7] 135 TCP UDP Microsoft EPMAP (End Point Mapper), also known as DCE/RPC Locator service , used to remotely manage Unofficial services including DHCP server, DNS server and WINS. Also used by DCOM 137 TCP UDP NetBIOS NetBIOS Name Service Official 138 TCP UDP NetBIOS NetBIOS Datagram Service Official 139 TCP UDP NetBIOS NetBIOS Session Service Official 143 TCP UDP Internet Message Access Protocol (IMAP)—used for retrieving, organizing, and synchronizing e-mail messages Official [8] 152 TCP UDP Background File Transfer Program (BFTP) Official 153 TCP UDP SGMP, Simple Gateway Monitoring Protocol Official 156 TCP UDP SQL Service Official 158 TCP UDP DMSP, Distributed Mail Service Protocol Unofficial 161 UDP Simple Network Management Protocol (SNMP) Official [9] 162 TCP UDP Simple Network Management Protocol Trap (SNMPTRAP) Official 170 TCP Print-srv, Network PostScript Official 177 TCP UDP X Display Manager Control Protocol (XDMCP) Official 179 TCP BGP (Border Gateway Protocol) Official 194 TCP UDP IRC (Internet Relay Chat) Official 199 TCP UDP SMUX, SNMP Unix Multiplexer Official 201 TCP UDP AppleTalk Routing Maintenance Official List of TCP and UDP port numbers 4 209 TCP UDP The Quick Mail Transfer Protocol Official 210 TCP UDP ANSI Z39.50 Official 213 TCP UDP Internetwork Packet Exchange (IPX) Official 218 TCP UDP Message posting protocol (MPP) Official 220 TCP UDP Internet Message Access Protocol (IMAP), version 3 Official 256 TCP UDP 2DEV "2SP" Port Unofficial 259 TCP UDP ESRO, Efficient Short Remote Operations Official 264 TCP UDP BGMP, Border Gateway Multicast Protocol Official 308 TCP Novastor Online Backup Official 311 TCP Mac OS X Server Admin (officially AppleShare IP Web administration) Official 318 TCP UDP PKIX TSP, Time Stamp Protocol Official 319 UDP Precision time protocol event messages Official 320 UDP Precision time protocol general messages Official 323 TCP UDP IMMP, Internet Message Mapping Protocol Unofficial 350 TCP UDP MATIP-Type A, Mapping of Airline Traffic over Internet Protocol Official 351 TCP UDP MATIP-Type B, Mapping of Airline Traffic over Internet Protocol Official 366 TCP UDP ODMR, On-Demand Mail Relay Official 369 TCP UDP Rpc2portmap Official 370 TCP UDP codaauth2 – Coda authentication server Unofficial 370 TCP UDP securecast1 – Outgoing packets to NAI's servers, [10] Unofficial 371 TCP UDP ClearCase albd Official 383 TCP UDP HP data alarm manager Official 384 TCP UDP A Remote Network Server System Official 387 TCP UDP AURP, AppleTalk Update-based Routing Protocol Official 389 TCP UDP Lightweight Directory Access Protocol (LDAP) Official 401 TCP UDP UPS Uninterruptible Power Supply Official 402 TCP Altiris, Altiris Deployment Client Unofficial 411 TCP Direct Connect Hub Unofficial 412 TCP Direct Connect Client-to-Client Unofficial 427 TCP UDP Service Location Protocol (SLP) Official 443 TCP HTTPS (Hypertext Transfer Protocol over SSL/TLS) Official 444 TCP UDP SNPP, Simple Network Paging Protocol (RFC 1568) Official 445 TCP Microsoft-DS Active Directory, Windows shares Official 445 TCP Microsoft-DS SMB file sharing Official 464 TCP UDP Kerberos Change/Set password Official 465 TCP Cisco protocol Unofficial 465 TCP SMTP over SSL Unofficial 475 TCP tcpnethaspsrv (Aladdin Knowledge Systems Hasp services, TCP/IP version) Official 497 TCP Dantz Retrospect Official List of TCP and UDP port numbers 5 500 _ UDP Internet Security Association and Key Management Protocol (ISAKMP) Official 501 TCP STMF, Simple Transportation Management Framework – DOT NTCIP 1101 Unofficial 502 TCP UDP Modbus, Protocol Unofficial 504 TCP UDP Citadel – multiservice protocol for dedicated clients for the Citadel groupware system Official 510 TCP First Class Protocol Unofficial 512 TCP Rexec, Remote Process Execution Official 512 UDP comsat, together with biff Official 513 TCP rlogin Official 513 UDP Who Official 514 TCP Shell—used to execute non-interactive commands on a remote system (Remote Shell, rsh, remsh) Official 514 UDP Syslog—used for system logging Official 515 TCP Line Printer Daemon—print service Official 517 UDP Talk Official 518 UDP NTalk Official 520 TCP efs,
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